Texas Instruments M0L1305QDGS28RQ1

Overview

M0L1305QDGS28RQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 32-bit Arm® Cortex®-M0+ microcontroller operating up to 32 MHz, featuring 32 KB flash, 4 KB SRAM, a 12-bit 1.68-Msps ADC with 10 external channels, two zero-drift chopper op-amps, and integrated temperature sensing - deployed in steering wheel systems and door handle modules.

For engineers reviewing the M0L1305QDGS28RQ1 datasheet, M0L1305QDGS28RQ1 pinout, M0L1305QDGS28RQ1 application, or M0L1305QDGS28RQ1 equivalent, key selection criteria include its 28-pin VSSOP package, -40°C to +125°C operation, 1.62–3.6 V supply range, 1.0 µA STANDBY current with 32-kHz timer retention, and functional safety documentation support.

Technical Context

The M0L1305QDGS28RQ1 implements an Arm Cortex-M0+ core with on-chip SYSOSC (±1.2% accuracy) and LFOSC (±3%), eliminating external crystals. Its analog subsystem integrates ADC0 with configurable 1.4-V/2.5-V internal VREF, COMP0 with 8-bit reference DAC and 32-ns propagation delay, and OPA0/OPA1 with 0.5-µV/°C drift and programmable gain (1–32×).

Digital peripherals include four 16-bit timers supporting 8 PWM channels, 3-channel DMA, event fabric for low-power signaling, and dual UARTs (one LIN-capable), dual I²C (one FM+), and one SPI (16 Mbit/s), all operable in STANDBY mode with sub-µA wake capability.

Key Specifications

Pinout & Package

28-pin VSSOP (DGS) package with exposed pad not present; 7.1 mm × 4.9 mm footprint; RoHS-compliant; rated for automotive temperature range.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Compared with MSPM0L1306QDGS28Q1, M0L1305QDGS28RQ1 trades flash capacity for cost optimization in fixed-function modules; versus SPC560B50L5, it delivers superior analog integration and 10× lower STANDBY current but lacks CAN FD - making it ideal for LIN/I²C-based interior nodes where analog sensing dominates.

Availability

M0L1305QDGS28RQ1 is available at Aetrix Electronics and suitable for automotive body electronics, steering wheel systems, and door handle modules requiring stable component supply across extended temperature ranges and functional safety documentation support.

Supply support for M0L1305QDGS28RQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for automotive, industrial, and personal electronics markets.

The MSPM0L130x-Q1 product line targets cost-sensitive, ultra-low-power automotive applications - specifically designed for body electronics, occupancy detection, and electromechanical control where analog integration, AEC-Q100 qualification, and functional safety readiness are mandatory.

FAQ

What is the maximum operating frequency and core architecture of the M0L1305QDGS28RQ1?

The M0L1305QDGS28RQ1 features an Arm Cortex-M0+ 32-bit RISC core with a maximum operating frequency of 32 MHz. It uses a Harvard architecture with separate instruction and data buses, enabling efficient execution of real-time control tasks in automotive applications such as steering wheel interface logic and door latch sequencing. The M0L1305QDGS28RQ1 achieves this performance with on-chip SYSOSC calibrated to ±1.2% accuracy, eliminating external crystal dependencies.

Does the M0L1305QDGS28RQ1 support AEC-Q100 qualification and what temperature grade does it meet?

Yes, the M0L1305QDGS28RQ1 is AEC-Q100 qualified for automotive applications and meets Grade 1 specifications, supporting operation from –40°C to +125°C ambient temperature (TA). This qualification is documented in TI's official device folder and production data sheet SLASF59A, confirming suitability for under-dash and cabin-mounted systems without thermal derating. The M0L1305QDGS28RQ1 also includes functional safety documentation to aid ISO 26262 system-level development.

How many analog-to-digital converter (ADC) channels does the M0L1305QDGS28RQ1 provide, and what is its sampling rate?

The M0L1305QDGS28RQ1 integrates a single 12-bit successive-approximation ADC (ADC0) with up to 10 external analog input channels (A0–A9). Its maximum sampling rate is 1.68 million samples per second (Msps), supporting high-fidelity acquisition of fast-changing signals like motor current transients or ultrasonic echo returns. The M0L1305QDGS28RQ1 also supports configurable internal voltage references (1.4 V or 2.5 V) for ratiometric measurements independent of supply variation.

What low-power modes are available on the M0L1305QDGS28RQ1, and what is the lowest achievable current draw?

The M0L1305QDGS28RQ1 offers four low-power modes: RUN (71 µA/MHz), STOP (151 µA at 4 MHz), STANDBY (1.0 µA with 32-kHz timer active and full SRAM retention), and SHUTDOWN (61 nA with IO wakeup). The STANDBY mode enables ultra-low quiescent current while maintaining real-time responsiveness - critical for always-on functions like proximity detection in kick-to-open modules. The M0L1305QDGS28RQ1 wakes from STANDBY to full-speed operation in just 3.2 µs.

Which communication interfaces are supported by the M0L1305QDGS28RQ1, and which ones remain active in low-power modes?

The M0L1305QDGS28RQ1 supports two UARTs (one LIN-capable), two I²C interfaces (one FM+ at 1 Mbit/s), and one SPI (up to 16 Mbit/s). All three interface types retain functionality in STANDBY mode, enabling wakeup from LIN frame reception, I²C address match, or SPI activity - essential for gateway and sensor hub applications requiring persistent bus monitoring. UART0 supports IrDA, DALI, Smart Card, and Manchester protocols; I²C supports SMBus and PMBus for power management interoperability.